Bjh Adsorption/Desorption Report Options - Micromeritics ASAP 2020 Confirm Operator's Manual

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BJH Adsorption/Desorption Report Options

The BJH Adsorption and Desorption dialogs include the same fields; the operating
instructions for both are the same.
The BJH calculation determines the mesopore volume/area distribution which accounts for
both the change in adsorbate layer thickness and the liquid condensed in pore cores. You can
generate BJH reports from adsorption and desorption data.
Thickness Curve Type
If you select a thickness curve which is not a good match for the sample being
analyzed, an incomplete pore distribution may be generated.
202-42811-01 - Mar 2011
Presents the type of thickness curves available.
• Reference
• Kruk-Jaroniec-Sayari
• Halsey
• Harkins and Jura
• Broekhoff-de Boer
• Carbon Black STSA (ASTM D-6556-0lA)
You can also apply the Frenkel-Halsey-Hill thickness curve
using the Halsey option, and entering the appropriate values
in the equation. Use
Edit
Halsey is the default thickness curve and typically is used
for BJH calculations.
ASAP 2020 Confirm
This field does not display on
the BJH Desorption dialog
to edit the values in the equation.
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